#171 – Felix Arntz on How Speculative Loading Is Speeding Up Your WordPress Website

On the podcast today we have Felix Arntz who discusses speculative loading, a new WordPress 6.8 feature designed to make websites faster by preloading pages before users navigate to them. Felix explains how it works, why WordPress uses a conservative default setting for broad compatibility, and how more eager configurations are possible with plugins or code. The episode also covers how performance gains, though seemingly small, add up at scale and are carefully measured using large datasets. Felix highlights the balance between speed improvements and environmental considerations, and shares insights into the data-driven work of the WordPress Performance Team. If you’ve ever wondered how large-scale, browser-level improvements make their way into WordPress Core, or simply want to know if there’s a way to make your own WordPress site that much faster, this episode is for you.